21931508

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{1291}}^1$

素因数の和:1463

約数の個数: 24

約数和(自身を含む): 39938304

約数和(自身を除く): 18006796

約数列:

[1, 2, 4, 31, 62, 124, 137, 274, 548, 1291, 2582, 4247, 5164, 8494, 16988, 40021, 80042, 160084, 176867, 353734, 707468, 5482877, 10965754, 21931508]

約数ペア:

[(1, 21931508), (2, 10965754), (4, 5482877), (31, 707468), (62, 353734), (124, 176867), (137, 160084), (274, 80042), (548, 40021), (1291, 16988), (2582, 8494), (4247, 5164)]